Corn Sugar (Dextrose)

Corn Sugar (Dextrose)

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Corn Sugar, or dextrose, is used to "prime" your beer to produce natural carbonation in the bottle. "Priming" is the act of adding a small amount of fresh fermentable sugar to the beer just before bottling so that the residual yeast will consume it and produce carbonation in the sealed bottle. We recommend corn sugar for this purpose because it is easy for the yeast to consume and has a neutral flavor profile, meaning it will leave your beer tasting the way you designed it!
Use 4 or 5 oz of corn sugar to prime 5 gallons prior to bottling. Dissolve in 1-1.5 pints of water and boil for 5 minutes to sanitize prior to mixing with your beer.
If your fermentation ended at 68F it will retain about 1 volume of CO2. If it ended at 50F it will retain about 1.2 volumes of CO2. 4 oz in 5 gallons adds 1.48 Volumes of CO2. 5 oz adds 1.84 volumes of CO2 to 5 Gallons.
Suggested CO2 Levels:
  • Cask Ales 1.5 to 2.0
  • Ales 2.3 to 2.6
  • Lagers 2.4 to 2.6
  • Highly Carbonated Beers 3.0+
    • Champagne is 6.3 and requires a special bottle.
To convert from volumes to g/L:
  • multiply volumes x 1.96.
Can also be used to boost your Original Gravity without impacting the beer's flavor profile. Adds 1.042 points per pound per gallon (PPG) to your specific gravity.
  • Dextros Needed (lbs.) = (Actual Volume * (Target Gravity – Actual Gravity)) / 0.042
Community Q&A

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Priming sugar
Mark C on Dec 4, 2020
Bill k on Dec 4, 2020
Priming sugar
Mark C on Dec 4, 2020
Better head with 5 Oz vs 4 oz
Levi Stephen K on Dec 4, 2020
Bill k on Dec 4, 2020
hard seltzer ingredient
Brent on Dec 4, 2020
Because it is no longer included with the kits..
Michael G on Dec 4, 2020
give it a try
Michael C on Dec 3, 2020
Tiny bubbles in my beer.
Valued C on Dec 2, 2020
why not
David B on Dec 1, 2020
not set up for kegs yet.
Ryan H on Dec 1, 2020
Need for bottling
Robert C on Nov 30, 2020
I ran out of it
Samuel Hoagland on Nov 28, 2020
Steven J C on Nov 26, 2020
Just in case
Rommel A on Nov 26, 2020
Cream Ale Adjunct
Jeff L on Nov 26, 2020
Kits don't come with it anymore
Nick L on Nov 23, 2020
harvest moon pumpkin beer
JOHN R on Nov 23, 2020
it worked with my first batch
Paulino T on Nov 21, 2020
Need to bottle a batch
Dale R on Nov 20, 2020
Need it
James H on Nov 20, 2020
priming sugar for bottling
Matt E on Nov 18, 2020
I want to make sure I make sparkling cider so this is a must.
David T on Nov 18, 2020
Self explanatory
MONTE M on Nov 17, 2020
For sparkling wine
Don N on Nov 16, 2020
I didn't see it included and I believe I will need it.
Russell P on Nov 14, 2020
so i won't forget it
david c on Nov 13, 2020
i want a vigorously carbonated result, hence 5oz instead of 4oz for a 5gal brew
ryan n on Nov 13, 2020
Almost out of priming sugar
Phillip D on Nov 12, 2020
make the beer fizzy
onno de j on Nov 12, 2020
Neda P on Nov 11, 2020
I bottle
Dennis J B on Nov 9, 2020
Used before and love it
Damon S on Nov 7, 2020
Don't have any - will be bottling
Vaughn G on Nov 7, 2020
Amber G on Nov 4, 2020
Make prime with exceptional carbonation used before and I like
troy s on Oct 31, 2020
in recipe
James H on Oct 31, 2020
need to prime cider
John B on Oct 30, 2020
Prior purchase
Ruben M on Oct 30, 2020
Bottle conditioning an IPA
Michael P on Oct 30, 2020
Most affordable
Josh P on Oct 30, 2020
Cider making
Jim L on Oct 28, 2020
Richard F on Oct 28, 2020
bottling priming sugar, and to help dry out IPAs
Anthony W. G on Oct 28, 2020
Chauncey J on Oct 27, 2020
go with kit
Michael C on Oct 26, 2020
Trying an Alchemist recipe
Rich P on Oct 26, 2020
No real reason.
Kevin L on Oct 22, 2020
Need it for bottling
Matthew M on Oct 22, 2020
Because the yeast asked me to...I obey my yeast.
Chris M on Oct 20, 2020
I want bubble beer.
Kevin D on Oct 20, 2020
Better head with 5 Oz vs 4 oz
Levi Stephen K on Dec 4, 2020
hard seltzer ingredient
Brent on Dec 4, 2020

4.9 / 5.0
34 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
corn sugar
the corn sugar is very easy to use. It dissolves fast and completely.
October 27, 2020
1 month ago
It's sugar, let's not get excited
Hooray for adjuncts.
October 2, 2020
2 months ago
It was corn sugar
The bag intact and it arrived as scheduled.
September 16, 2020
3 months ago
needed item
I need this for bottling, but decided to keg
September 2, 2020
3 months ago
Have been getting consistent carbonated results
August 25, 2020
3 months ago
Prime sugar!
???? perfect for bottle conditioning
August 20, 2020
3 months ago
Excelente producto muy buena calidad
August 9, 2020
4 months ago
it's corn sugar. Whats to review?
It's corn sugar. What more can I say. I haven't even reached the lagering stage yet, let alone bottling.
July 24, 2020
5 months ago
Corn Sugar
It was indeed corn sugar
July 7, 2020
6 months ago
This Corn Sugar was Sweeeeeet
This corn sugar worked exactly as expected. Perfect in my Cali IPA
June 12, 2020
6 months ago